add tests

Author: xiongyihui

.travis.yml

@@ -15,6 +15,8 @@ before_install:
 install:
   - pip install .
 
+script: pytest
+
 deploy:
   provider: pypi
   distributions: "sdist bdist_wheel"

tests/test_echo_canceller.py

@@ -0,0 +1,15 @@
+
+import wave
+import sys
+from speexdsp import EchoCanceller
+import pytest
+
+
+def test_echo_canceller():
+    frames = 64
+    filter_length = 256
+    echo_canceller = EchoCanceller.create(64, 256, 16000)
+
+    chunk = '\0\0' * frames
+    for _ in range(16):
+        out = echo_canceller.process(chunk, chunk)